32013421 has 16 divisors (see below), whose sum is σ = 36288000. Its totient is φ = 27979200.

The previous prime is 32013391. The next prime is 32013427. The reversal of 32013421 is 12431023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 32013421 - 2¹³ = 32005229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32013395 and 32013404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32013427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91555 + ... + 91903.

It is an arithmetic number, because the mean of its divisors is an integer number (2268000).

Almost surely, 2^32013421 is an apocalyptic number.

32013421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32013421 is a deficient number, since it is larger than the sum of its proper divisors (4274579).

32013421 is a wasteful number, since it uses less digits than its factorization.

32013421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 32013421 is about 5658.0403851510. The cubic root of 32013421 is about 317.5245885849.

Adding to 32013421 its reverse (12431023), we get a palindrome (44444444).

The spelling of 32013421 in words is "thirty-two million, thirteen thousand, four hundred twenty-one".